414 
39. COMPOSITE, A. 
PI. ex. cal. 
d. Pappus hairlike , stipitated ; scales of the pericline in a 
single row. 
Bractece many, loose Taraxacum. 185. 
Bractece few ; pericline cylindrical ; 
calathide many-flowered Lactuca. 180. 
Bractece few; pericline cylindrical; 
calathide 5-flowered Chondrilla. 178. 
e. Pappus feathered, sessile ; clinanthus naked f 
pericline imbricated. 
Akenium streaked lengthways ; 
pappus unequal Thrica. 188. 
Akenium streaked lengthways ; pappus of 
the circumference unequal, scaly Virea. 189. 
Akenium wrinkled transversely Picris. 190. 
f. Pappus feathered , stipitate ; clinanthus naked ; scales 
of the pericline one-rowed . 
Akenium wrinkled transversely ; 
involucrum 5-bracteated Heliyiinthia. 191. 
Akenium streaked lengthways ; 
involucrum 0 Tragopogon. 192. 
g. Pappus feathered ; clinanthus chaffy ; pericline imbricate. 
Pappi all stipitate Achyrophorus. 186. 
Pappus of the centre stipitate ; of 
the circumference sessile Hypochasris. 187. 
I. 176. LAPS AN A. Dioscorides. Nipplewort . 
Bractece 4 or 5, very short ; pericline- scales 8, in a 
single row, upright, connivent; clinanthus bald, flat, with 
depressed papillae ; flowers many ; akenium oblong, angular, 
streaked, deciduous ; pappus 0. 
Lapsana communis. Common nipplewort. 
Stem upright, streaked, branched ; leaves ovate, petioled, 
angularly toothed; peduncles thin, much branched; peri- 
cline when in fruit angular. 
Lampsana, Rail Syn. 173, 1 ; Ger. em. 255. 
Lampsana vulgaris. Park. 810. 
Lapsana communis, Lin. S. P. 1141. 
Dock cresses. 
Ruins and fields; annual; June and July. 
